Tag Archives: VHF/UHF

A High Altitude Balloon Project To Generate STEM Interest And Learning

Several members of our club have been working on a High Altitude Balloon Project to promote STEM interest and learning by young people. Our project team currently includes the following folks:

Other interested club members are welcome to join us.

We want to provide a STEM learning opportunity and project to be planned and executed by young people ages 10 – 16. We are actively seeking engagement and support from local schools, Scout Troops and other youth organizations to help us with this project.

Our goals for the project include:

  • Building and launching a high altitude balloon carrying Amateur Radio to near space and back
  • Enabling young people to plan and execute the project with help and guidance from members of the Nashua Area Radio Club and supporting adults from organizations that wish to assist us
  • Helping young people gain STEM-based experience and learnings by handling all phases of the project including:
    • Planning the flight, the balloon, and its payload
    • Building the balloon and testing it on the ground
    • Launching, tracking and recovering the balloon’s payload
    • Analysis of the flight data and the creation of a presentation to be delivered to fellow students and other interested groups

We plan to introduce new technology, experiments, and flight elements and develop team member skills and expertise across multiple launches. Later phases of the project are expected to include design and construction of additional payload electronics, high altitude/longer duration flights, and additional on-board atmospheric science experiments.

Typical High Altitude Balloon System
Typical High Altitude Balloon System

Our goals for the initial flight mission of this project will include:

  • Building a helium filled balloon which carries a payload of < 4 lbs. to altitudes in excess of 90,000 ft (27,400 m)
    • Parachute controls decent rate after balloon bursts
  • Capturing a video of flight using on-board GoPro video camera(s)
  • Flying an on-board APRS transmitter allows tracking from the ground via Amateur 2m APRS and aprs.fi
    • Flight computer plus APRS provides altitude, position and temperature data throughout the flight
    • Anyone with a device that has internet access and a web browser will be able to track the flight
  • Augmenting the APRS system with commercial satellite tracker to assure successful recovery of our payload by the project team
High Altitude Balloon
High Altitude Balloons

The balloon is filled with enough Helium to carry its payload to a target altitude in excess of 90,000 ft and then burst. A parachute will deploy to control the rate at which the payload descends and will ensure a controlled safe and soft landing.

High ALtitude Balloon Payload Components
Payload Components

The payload will be built around a light-weight platform which will carry a Video Camera, a Flight Computer/APRS Transmitter, and a Commercial Satellite Tracker. The camera will capture a video of the flight and the flight computer will record altitude, temperature and position data and relay this information to the ground via APRS on 2m. A commercial satellite tracker would be included to ensure we could locate the payload once it is back on the ground.

High Altitude Balloon Flight Planning
High Altitude Flight Planning

A key part of the project will involve planning the target altitude and flight path for our balloon. There are some good resources available to help us do this. Check out the Balloon Performance Calculator here. Tools also exist to estimate a balloon’s flight path and track based on Jetstream and other flight parameters.

High Altitude Balloon Tracking
High Altitude Balloon Tracking

Once we launch our balloon, we can track it in flight via the Amateur Radio APRS network on 2m. The payload will transmit position and other information via APRS that will be received by the many APRS receiver stations that have been built by Amateur Radio Operators. The data from our balloon will be relayed to aprs.fi in real-time and will be able to be displayed on any device with internet access and a web browser.

High Altitude Balloon Flight Data Analysis
High Altitude Balloon Flight Data Analysis

Once we recover our balloon payload, we will guide our young team members in analyzing the data from the flight to help them to learn about atmospheric conditions and to prepare to share the results along with the video captured with classmates and other interested groups. You can get an idea of the video that we can expect below.

 

We are working to raise the necessary funds to support our project.  We are counting on the generosity of our members and friends to help us.  Please consider making a donation here.

Fred, AB1OC

A New LEO Sat! FUNcube-3 (EO-79) Goes Live

FUNcube-3 (EO-79) goes live | November 18, 2016

The EO-79/FUNcube-3 satellite has transitioned to amateur radio service, now that its primary mission has been completed. AMSAT-UK and AMSAT-NL have announced that the FUNcube U/V transponder has been activated with a regular schedule. Due to power budget constraints, the transponder cannot operate 24/7, so an orbit-specific schedule has been developed. The transponder will commence operation 27 minutes after the spacecraft enters sunlight and remain active for 25 minutes. This schedule may be modified in the weeks ahead, as experience dictates. The output power of the amateur radio payload is about 400mW.

Source: FUNcube-3 goes live – Radio Society of Great Britain – Main Site : Radio Society of Great Britain – Main Site

Looks like we have a new LEO satellite that we can work. EO-79 is now active of Amateur Radio use. It has an inverting SSB/CW transponder which operates on the following frequencies:

  • 435.035 – 435.065 MHz Uplink (Initial testing indicates 435.047 – 435.077 actual)
  • 145.935 – 145.965 MHz Downlink

You can learn more about this new satellite here.

Fred (AB1OC)

The Nashua Area Radio Club is Number 1 Field Day Again!

We got up to some great news this morning. The Nashua Area Radio Club is once again Number 1 Field Day!!

2016 ARRL Field Day Results - 7A Category
2016 Results – 7A Category

We are the Top Club in our Category (7A) for 2016 with a final score of 9,292. The next closest club was W6TRW with a score of 5,610. You can see all the 2016 results on the ARRL score page. For a more detailed breakdown of our score for 2016, check out our Field Day page.

Congratulations to everyone who helped to make our 2016 operation a success! Also, a special thank you to our planning team –

Our 2016 Field Day Planning Team
Our Planning Team
Field Day Presentation
Mike, K1WVO Helping To Deliver Our Field Day Presentation During Our Club Meeting
Field Day Presentation
Presentation At Our Club Meeting

We certainly have many great memories from our 2016 Operation. I spent some time today looking at the photos from our 2016 Operation and the video from our 2016 Operation again. I picked out some photos to share here –

40m V-Beam
Our 40m V-Beam

Our setup was well planned and the execution was top-notch!

CW Row
CW/6m Row With One Of Two Of Our Towers And Beams
20m CW Op
20m CW Station
DATV Station Equipment
SSB Stations and Digital ATV Station on 70 cm
Satellite Station Equipment
LEO Satellite Station

Many folks in our club pulled together to build our setup and we operated hard during Field Day.

Mike, KU1V Operating During Field Day 2016
Mike, KU1V Operating
40m CW Op
Ed, K2TE Operating 40m CW
20m CW Op
Bill, NJ1H Operating 20m CW
20m SSB Op
Jamey, KC1ENX, Operating 20m SSB
75m-15m SSB Op, AB1BY
Abby, KC1FFX Operating on 75m SSB
40m SSB Ops
Brian, AB1ZO Operating on 40m SSB
Jeff, WA1HCO Operating On 6m During Field Day 2016
Jeff, WA1HCO Operating On 6m
Field Day Fun
Field Day Fun 2016
Field Day Feast!
Merle, W1MSI Provided Us With A  Feast!

We also helped to introduce folks to Amateur Radio via our GOTA Station.

Field Day GOTA Station
Our GOTA Station Provided By Wayne, KB1HYL

It’s fun to think about all the great things that went on during Field Day this year.

Our 2016 Highlights Video

Looking forward to our 2017 Field Day operation!!!

Fred, AB1OC

Hashtag: #ARRLFD

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